3.4
Nominal diameter and flow rate
The diameter of the pipe usually governs the nominal diameter of the sensor.
The optimum flow velocity range is between v = 2...3 m/s. Furthermore, the flow
velocity (v) has to be matched to the physical properties of the fluid:
•
v < 2 m/s
→
with abrasive fluids (potter’s clay, lime milk, ore slurry)
•
v > 2 m/s
→
with fluids forming coating (wastewater sludge, etc.)
If it is necessary to increase the flow velocity, this can be done by reducing the
nominal diameter of the sensor (see following chapter).
DN
Full scale values in [m
3
/h]
[mm]
[inch]
Minimum value
at v = 0.3 m/s
Factory setting
at v ~ 2.5 m/s
Maximum value
at v = 10 m/s
2
4
8
15
25
32
40
50
65
80
100
125
150
200
250
300
350
400
450
500
600
700
750
800
900
1000
1050
1200
1350
1400
1500
1600
1700
1800
2000
1
/
12
"
5/
32
"
5
/
16
"
1
/
2
"
1"
1
1
/
4
"
1
1
/
2
"
2"
2
1
/
2
"
3"
4"
5"
6"
8"
10"
12"
14"
16"
18"
20"
24"
28"
30"
32"
36"
40"
42"
48"
54"
56"
60"
64"
66"
72"
78"
0.0034
0.0136
0.0543
0.1908
0.5301
0.8685
1.357
2.121
3.584
5.429
8.482
13.25
19.09
33.93
53.01
76.34
103.9
135.7
171.8
212.1
305.4
415.6
477.1
542.9
687.1
848.2
935.2
1222
1546
1663
1909
2172
2451
2748
3393
0.0283
0.1131
0.4524
1.590
4.418
7.238
11.31
17.67
29.87
45.24
70.69
110.5
159.0
282.7
441.8
636.2
865.9
1131
1431
1767
2545
3464
3976
4524
5726
7069
7793
10179
12882
13854
15904
18096
20428
22902
28274
0.1131
0.4524
1.810
6.362
17.67
28.95
45.24
70.69
119.5
181.0
282.7
441.8
636.2
1130
1767
2545
3464
4524
5726
7069
10179
13854
15904
18096
22902
28274
31172
40715
51530
55418
63617
72382
81713
91609
113097
Promag 33
3 Mounting and Installation
Hauser
13
Содержание PROMAG 33
Страница 43: ...Promag 33 5 Display and Operation Endress Hauser 43...
Страница 46: ...5 Display and Operation Promag 33 46 Endress Hauser...
Страница 84: ...6 Description of Functions Promag 33 84 Endress Hauser...
Страница 98: ...7 Trouble shooting Maintenance and Repairs Promag 33 98 Endress Hauser...
Страница 106: ...8 Dimensions Promag 33 106 Endress Hauser...
Страница 116: ...9 Technical Data Promag 33 116 Endress Hauser...
Страница 125: ......